Well, damn, that was certainly quick. And here I thought that this was going to be the big stumperoo!
In any case, reader Mark Coleman nailed it in very short order. King Crimson, as it turns out, did not grace the grass of The Great Lawn, sully the soil of Sheep’s Meadow or brave the boards at the Bandshell with their complex blend of stentorian proggery. Rather, it was the seemingly unlikely environs of the Wollman Skating Rink that played host to Messrs. Fripp, Wetton, Bruford and associates. See photos below.
And as unlikely as I asserted above, Wollman Rink was evidently once a target destination for rock bands, as the Schaefer Music Festival evidently held court there between the pointedly pre-punk days between 1968 and 1976, playing host to a rich, wide array of big name bands.
And, yes – according to this Wikipedia page, evidently King Crimson did play the venue consecutively in 1973 and 1974!
So go know! Here they are, purportedly, from their gig there in 1973. Get your skates on!
Also, Crimso-pendants, I’m well aware that the knot image at the top of this post refers to a totally different incarnation of the band, but I’m keeping it there because I think it looks nice.